In horses, there are four alleles at the A locus
Arranged in dominance sequence they are:A
(wild), ab (bay), ac (brown), ad (black)
If you bred several bay mares whose sires were
brown to a brown stallion whose sire was black, what
are the genotypes of the parents; what type of
offspring would be produced, and in what
proportion? What will be an ideal response?
Answer: abac x acad; 1/2 bay, 1/2 brown
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The Pacinian corpuscle is used in detecting ____
a. sound b. hard pressure c. chemicals d. light touch e. chemical differences
A mutation that affects Ca++ binding to calmodulin is most likely to interfere with what aspect of a signal transduction pathway?
A. The cellular response to the second messenger B. G protein activity C. The MAP kinase cascade D. The flow of Ca++ ions through ion channel receptors
After hiking for an hour in the desert without drinking water, your circulating levels of ADH will be
A) below average. B) average. C) above average.